The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. A random sample of 12 equal-sized stores is selected, with the following results (stored in Petfood):

a. Construct a scatter plot.
For these data, b0 = 145 and b1 = 7.4.
b. Interpret the meaning of the slope, b1, in this problem.
c. Predict the weekly sales of pet food for stores with 8 feet of shelf space for pet food.

Transcribed Image Text:

Store Shelf Space (X) (Feet Weekly Sales () (S) 10 10 10 15 15 15 20 20 20 160 220 140 190 240 260 230 270 280 260 290 310 10 12